Morse code is a method of transmitting letters and digits via acoustic or radio signals, by translating them into a sequence of mechanical or optical impulses. Over the years, many artists have taken up this tool, with a focus on its communicative side: for instance, Cerith Wyn Evans, who has relayed everything from philosophical treatises and excerpts from novels to poems via light-transmitting objects, such as extravagant crystal chandeliers. Others have mobilized heavier equipment; among these is Craig Morrison, who have employed laser beams to broadcast messages of gratitude to the code breaker Alan Turing into nocturnal urban landscapes.

And then there are those who keep a cool head and stay closer to the code’s rational underpinnings. The Austrian light artist Brigitte Kowanz is one of them. Her exacting control of her work’s presentation and her keen feel for scale and